ASTROSAT CZTI

Data Quality Report

Orbit 43094

Creation date: 2024-06-27T22:47:55.492229
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_152T01_9000005846_43094cztM0_level2.fits modeM0/AS1T05_152T01_9000005846_43094cztM0_level2_quad_clean.evt
Size (bytes)293,901,12084,320,640
Size280.3 MB 80.4 MB
Events in quadrant A2,972,164563,337
Events in quadrant B2,543,023573,819
Events in quadrant C2,366,190551,174
Events in quadrant D2,596,308504,357

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119511
B0111241
C0104581
D0116271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5146340.660707%
B5147390.757723%
C514750.097144%
D51471001.942879%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6879 5147 17 17 0.25% 0.33%
B 6880 5148 25 25 0.36% 0.49%
C 6880 5148 1 1 0.01% 0.02%
D 6880 5148 81 81 1.18% 1.57%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 477885 4124.77 555 544 115.7
A 12 189 260379 2245.27 555 544 115.7
A 15 237 86323 741.23 555 544 115.7
B 0 229 219621 2063.83 548 532 106.2
B 5 255 97421 912.7 548 532 106.2
B 0 189 40899 380.26 548 532 106.2
C 15 214 212052 1685.85 537 539 125.5
C 14 254 35586 279.34 537 539 125.5
C 0 207 22739 176.94 537 539 125.5
D 1 52 280436 2175.51 533 516 128.7
D 12 6 126369 978.12 533 516 128.7
D 12 218 54715 421.23 533 516 128.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter